Results 171 to 180 of about 182,899 (301)

Using the Ca II triplet to trace abundance variations in individual red giant branch stars in three nearby galaxies [PDF]

, 2001
E. Tolstoy, M. J. Irwin, Andrew A. Cole, L. Pasquini, R. Gilmozzi, J. S. Gallagher   +5 more
openalex   +1 more source

Sexual conflict as a constraint on asexual reproduction: an empirical review

Biological Reviews, EarlyView.
ABSTRACT Theory predicts that facultatively asexual animals, which can leverage the advantages of both sexual and asexual reproduction, should outcompete obligately sexual and obligately asexual animals. Yet, paradoxically, obligate sexual reproduction predominates in many animal lineages, while the most flexible form of facultative asexuality (i.e ...
Daniela Wilner, Russell Bonduriansky, Nathan W. Burke   +2 more
wiley   +1 more source

Abundances in Stars from the Red Giant Branch Tip to Near the Main-Sequence Turnoff in M71. II. Iron Abundance [PDF]

, 2001
Solange V. Ramírez, Judith G. Cohen, J. Buss, Michael M. Briley   +3 more
openalex   +1 more source

Walking With Dragons: Performance, the Sensorial, and Urban Change in Vancouver, Canada

City &Society, EarlyView.
ABSTRACT This article discusses the “Dragon Walk” project, a series of guided walks and participatory art‐based community gatherings purposefully located in one of Vancouver's major redevelopment landscapes, the Cambie Corridor. Adopting a “cats' cradle” approach to thinking and writing, I follow Dragon Walk's suggestion that we look at urban change ...
Cristina Moretti
wiley   +1 more source

Anomalously Fast Core and Envelope Rotation in Red Giants

The Astrophysical Journal
Red giants undergo dramatic and complex structural transformations as they evolve. Angular momentum is transported between the core and envelope during this epoch, a poorly understood process.
Siddharth Dhanpal, Othman Benomar, Shravan Hanasoge, Jim Fuller   +3 more
doaj   +1 more source

Tip of the red giant branch distance for the Sculptor group dwarf ESO 540-032 [PDF]

, 2001
Helmut Jerjen, M. Rejkuba
openalex   +1 more source

Downlisting and recovery of species assessed by the IUCN

Conservation Biology, EarlyView.
Abstract Despite the increasing number of species assessed for extinction risk by the International Union for Conservation of Nature (IUCN) (163,040 species as of 2024), only about 1 in 1,000 have been downlisted due to genuine population improvement. Although this rare conservation achievement has been widely celebrated in several recent cases, some ...
Mu‐Ming Lin, Richard A. Fuller, In‐Ki Kwon, Kisup Lee, Simba Chan, Wangwang Qiu, Yat‐Tung Yu, Chi‐Yeung Choi   +7 more
wiley   +1 more source

Evidence of Third Dredge-up in Post-AGB Stars in Galactic Globular Clusters

The Astrophysical Journal
To better understand the mixing and mass loss experienced by low-mass stars as they ascend the asymptotic giant branch (AGB), I have gathered from the literature the abundances of CNO and s -process elements in post-AGB stars in Galactic globular ...
William V. Dixon
doaj   +1 more source

Detection of the Red Giant Branch Stars in M82 Using theHubble Space Telescope

, 1999
Shoko Sakai, Barry F. Madore
openalex   +1 more source

A Step toward the Calibration of the Red Giant Branch Tip as a Standard Candle [PDF]

, 2001
M. Bellazzini, F. R. Ferraro, E. Pancino
openalex   +1 more source